How to define leftwing? Well, obviously our first and only port of call is Wikipedia, which tells us the left encompasses "progressives, social-liberals, greens, social-democrats, socialists, democratic socialists, civil-libertarians, secularists, communists and anarchists". So, hopefully, plenty of grist for the RR mill, although do bear in mind we've already covered areas with possible overlap including elections, politicians and social class.

Post your suggestions for the best songs about leftwing politics before midday on Monday and we'll assemble the ones we like best in a playlist for next week.

Each week the playlist will be compiled by a different volunteer from the Readers Recommend community. To increase the likelihood of your nomination being considered, please:

– Provide reasons why it's a worthy contender.

– Quote lyrics if helpful, but for copyright reasons no more than a third of a song's words.

– Provide a link to the song. We prefer YouTube, but Spotify, SoundCloud or Grooveshark are fine too.

Thanks to sonofwebcore for suggesting this week's topic. If you can think of a good theme for Readers Recommend, or if you'd like to volunteer to compile a playlist, please email adam.boult@guardian.co.uk.